[Ips-dhfpr] IPS Daily HF Prop Report - 23 December 15 issued 2330 UT on 23 Dec 2015 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 DECEMBER 2015 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 DECEMBER) 
Date   T index  Conditions    
23 Dec    70    Poor           

Flares    Max     Fadeout    Freq.  Sectors
  M4.6    0041UT  possible   lower  West Pacific

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Nov      55
Dec      63
Jan      63


2. FORECAST (24 DECEMBER - 26 DECEMBER)
Date   T index  Conditions       MUFs                              
24 Dec    70    Normal-fair      Near predicted monthly values
25 Dec    70    Normal           Near predicted monthly values    
26 Dec    65    Normal           Near predicted monthly values   

COMMENT: IPS SWF HF Communications Warning 83 was issued on 22 
December and is current for 22-24 Dec. Observed MUF's for the 
UT day 23 Dec were near the predicted monthly values. There is 
a chance of isolated shortwave fadeouts for the next two days 
due to flaring potential from active sunspot regions (Region 
2472 and 2473). The 2-day outlook (24-25 Dec) is MUFs remain 
strong, near the expected predicted monthly values.

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For an explanation of some of the terms in this report, go to
http://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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